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CVE-2023-34321

Status Candidate

Overview

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes (such as the ones during scrubbing) have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the helpers can overflow and would then result to skip the cache cleaning/invalidation. Therefore there is no guarantee when all the writes will reach the memory.

Related Files

Gentoo Linux Security Advisory 202409-10
Posted Sep 23, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202409-10 - Multiple vulnerabilities have been discovered in Xen, the worst of which could lead to privilege escalation. Versions greater than or equal to 4.17.4 are affected.

tags | advisory, vulnerability
systems | linux, gentoo
advisories | CVE-2022-42336, CVE-2022-4949, CVE-2023-28746, CVE-2023-34319, CVE-2023-34320, CVE-2023-34321, CVE-2023-34322, CVE-2023-34323, CVE-2023-34324, CVE-2023-34325, CVE-2023-34327, CVE-2023-34328, CVE-2023-46835, CVE-2023-46836
SHA-256 | 8b158b4b14fabb37b107389483696ee806809c7a28b87657efca564110fdb8a3
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